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Finding the Fourth Proportional to 75,195.54, 112,787.64 and 21,887.96

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Solution

The fourth proportional to 75,195.54, 112,787.64 and 21,887.96 is: 32,830.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,195.54 : 112,787.64 = 21,887.96 : x
  2. Step 2: Convert to fraction form
    75,195.54/112,787.64 = 21,887.96/x
  3. Step 3: Cross multiply
    75,195.54x = 112,787.64 × 21,887.96
  4. Step 4: Simplify right side
    75,195.54x = 2,468,690,788.88
  5. Step 5: Solve for x
    x = 2,468,690,788.88/75,195.54
  6. Step 6: Final answer
    x = 32,830.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.